In industrial control systems, automation equipment, and internal electrical wiring, a seemingly small component - the H05V-K cable - often plays a critical role. Choosing the right internal connection wire not only affects system stability and safety but also determines cost efficiency and ease of maintenance.
If you're selecting wires for control cabinets, electrical panels, or equipment wiring, understanding what H05V-K cable is - its definition, structure, performance, applications, and installation requirements - can help you make the right decision.
This article offers a complete overview of H05V-K cables and explains why Dongguan Greater Wire & Cable Co., Ltd. is a trusted supplier and technical partner in this field.
Definition and Standards of H05V-K Cable
Meaning of the Designation
"H05V-K" is the European harmonized code for a single-core flexible PVC-insulated wire.
- H = Harmonized (European Standard)
- 05 = Rated voltage 300/500 V
- V = PVC (Polyvinyl Chloride) insulation
- K = Flexible stranded conductor (Class 5)
Applicable Standards
H05V-K cables comply with EN 50525-2-31 / HD 21.3 / VDE 0285-525-2-31 standards.
They are commonly used throughout Europe and internationally under IEC and VDE approvals.
Electrical Ratings
- Rated Voltage: 300/500 V
- Test Voltage: Up to 2 kV (depending on standard)
- Temperature Rating: Up to 70 °C
These parameters make H05V-K ideal for use in electrical panels, switchgear, and other protected wiring environments.
Cable Structure
The H05V-K cable is designed for both flexibility and safety. Its typical construction includes:
| Layer | Material / Type | Function & Features |
|---|---|---|
| Conductor | Fine-stranded copper wire (Class 5) | Excellent conductivity and flexibility, ideal for narrow or complex paths |
| Insulation | PVC (Type TI.1) | Provides electrical insulation, dielectric strength, heat and flame resistance |
| Markings | Printed type / manufacturer / cross-section | Easy identification during installation or inspection |
This structure ensures that H05V-K cables maintain both mechanical strength and electrical reliability even in tight installation spaces.
Electrical and Mechanical Properties
Electrical Performance
- Rated voltage: 300/500 V
- High conductivity due to pure copper strands
- Strong dielectric strength and insulation resistance
Mechanical / Operating Features
- High flexibility (Class 5 conductor), suitable for frequent bending
- Flame retardant according to EN 60332-1
- Temperature range: –5 °C to +60 °C (some models up to higher limits)
- Resistant to moderate vibration and bending stress
Overall, H05V-K cables offer a balanced combination of electrical safety, flexibility, and durability.
Typical Applications
Because of their flexibility and reliability, H05V-K cables are ideal for internal wiring in:
- Industrial automation systems (PLC, control panels, instruments)
- Switchboards and distribution cabinets
- Machine internal wiring (relays, terminals, frequency inverters)
- Lighting systems and fixtures
- Household and office appliances (within rated voltage and temperature limits)
- Dry or protected installations such as conduits or ducts
H05V-K is not recommended for direct outdoor or high mechanical stress applications.
How to Select the Right H05V-K Cable
Choosing the correct cable requires evaluating several factors:
- Cross-sectional area / wire gauge
H05V-K is typically available from 0.5 mm² to 1.0 mm².
For larger current capacity, switch to H07V-K.
- Current-carrying capacity
Refer to standard ampacity tables according to installation and temperature conditions.
- Application environment
Consider temperature, humidity, vibration, and exposure to chemicals or oil.
- Voltage drop considerations
For long-distance wiring, verify acceptable voltage drop.
- Certifications
Choose cables with HAR / VDE / CE / RoHS / UL compliance for international use.
- Color coding
Available in multiple colors for easy phase, neutral, and grounding identification.
By following these steps, you can ensure both technical and regulatory compliance in your wiring project.
Installation and Safety Guidelines
Even the best cable must be installed correctly to perform safely. Follow these key precautions:
- Minimum bending radius: Typically 4–6 × outer diameter (varies by size)
- Laying method: Install within conduits, ducts, or protective channels - avoid exposed routing
- Temperature limits: Ambient temperature should stay within –5 °C to +60 °C range
- Testing: Perform insulation resistance and dielectric tests after installation
- Mechanical protection: Use flexible conduits or protective sleeves in high-vibration zones
- Compliance: Follow local electrical codes and standards (IEC / CE / UL etc.)
Proper installation ensures longer service life and system safety.
Comparison with Other Cable Types
| Model | Rated Voltage | Conductor Type | Cross-section Range | Typical Use | Key Features |
|---|---|---|---|---|---|
| H05V-K | 300/500 V | Flexible (Class 5) | 0.5 – 1.0 mm² | Internal wiring, control panels, protected installations | Excellent flexibility, ideal for small to medium circuits |
| H07V-K | 450/750 V | Flexible (Class 5) | ≥ 1.5 mm² | Higher load or voltage circuits | Handles larger current, more robust insulation |
| H05V-U | 300/500 V | Solid (Class 1) | Fixed sizes | Rigid wiring in dry environments | Lower cost, less flexible, not for tight spaces |
If your project demands flexibility, safety, and moderate voltage capacity, H05V-K is the perfect solution.
For higher voltage or current loads, choose H07V-K.
For fixed wiring where flexibility is not needed, H05V-U offers a budget-friendly alternative.
Why Choose Dongguan Greater Wire & Cable Co., Ltd.
At Dongguan Greater Wire & Cable Co., Ltd., we don't just manufacture cables - we deliver reliability, quality, and long-term partnership. Here's why customers worldwide trust us for H05V-K solutions:
- Custom Manufacturing
Flexible production for various sizes, lengths, colors, and markings - tailored to your project needs.
- Strict Quality Control
Every reel undergoes voltage, insulation, resistance, and aging tests to guarantee consistent performance.
- Certified Products
Our cables comply with HAR / CE / VDE / RoHS / UL certifications for global market compatibility.
- Professional Technical Support
Whether your project is small or large, we offer free technical consultation and wiring design assistance.
Our pre-sale and after-sale teams are available anytime to solve your installation challenges.
- Flexible Order & Delivery
We accept both small and bulk orders, with fast production cycles and reliable worldwide shipping.
- Customer-first Philosophy
We are committed to transparent pricing, high-quality service, and building long-term cooperation based on trust and performance.
Contact Us
Looking for a reliable supplier for H05V-K cables or other wiring solutions?
Reach out to us today - we're ready to support your next project with professional service and competitive pricing.
Dongguan Greater Wire & Cable Co., Ltd.
📞 Tel / WhatsApp / WeChat: +86 135 1078 4550
📞 Alternate: +86 136 6257 9592
✉️ Email: manager01@greaterwire.com
No matter the size of your project, we provide complete technical support and dependable after-sales service.
Let us help you find the ideal H05V-K cable solution - safer, simpler, and smarter.